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An effective way to learn computer programming is to sit side-by-side in front of the same computer with a tutor or peer, write code together, and then discuss what happens as the code executes. To bring this kind of in-person interaction to an online setting, we have developed Codechella, a multi-user Web-based program visualization system that enables multiple people to collaboratively write code...
Despite the enthusiasm and initiatives for making programming accessible to students outside Computer Science (CS), unfortunately, there are still many unanswered questions about how we should be teaching programming to engineers, scientists, artists or other non-CS majors. We present an in-depth case study of first-year management engineering students enrolled in a required introductory programming...
Instructors typically explain algorithms in computer science by tracing their behavior, often on blackboards, sometimes with algorithm visualizations. Using blackboards can be tedious because they do not facilitate manipulation of the drawing, while visualizations often operate at the wrong level of abstraction or must be laboriously hand-coded for each algorithm. In response, we present a direct...
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